GM 12673657 Belt Tensioner 2017-2026 L5P Duramax Diesel Silverado Sierra
GM 12673657 Belt Tensioner 2017-2026 L5P Duramax Diesel Silverado Sierra is backordered and will ship as soon as it is back in stock.
Product Care information
Product Care information
At BackWoods Diesel, we ensure all parts are stored in a clean, dry, and temperature-controlled environment to prevent damage. Our team inspects each part for quality and maintains them according to manufacturer guidelines before shipping.
Delivery and Shipping
Delivery and Shipping
At BackWoods Diesel, we prioritize fast and reliable shipping. All orders are carefully packed and dispatched promptly to ensure your parts arrive safely and on time, so you can keep your projects running smoothly without delay.
GM 12673657 Belt Tensioner 2017-2026 L5P Duramax Diesel Silverado S...
GM 12673657 Belt Tensioner 2017-2026 L5P Duramax Diesel Silverado Sierra is backordered and will ship as soon as it is back in stock.
Description
Description
Replace your worn, noisy, or failing belt tensioner with this Genuine GM Belt Tensioner Assembly, part number 12673657, designed for 2017–2026 Chevrolet Silverado and GMC Sierra 2500HD/3500HD trucks equipped with the 6.6L L5P Duramax diesel engine.
The automatic belt tensioner maintains proper tension on the engine's serpentine/accessory drive belt. As the tensioner wears, the pulley bearing or internal spring mechanism can develop excessive movement, noise, or insufficient belt tension, potentially causing belt squeal, vibration, improper accessory operation, or premature belt wear.
This Genuine GM replacement is manufactured to OEM specifications for proper belt alignment, tension, fitment, and long-term reliability.
Features & Benefits:
- Genuine OEM GM component
- Complete belt tensioner assembly
- Direct replacement for the factory tensioner
- Maintains proper serpentine belt tension
- Helps maintain correct belt alignment
- Helps eliminate noise caused by a worn tensioner
- OEM-quality fit, function, and durability
- Ideal replacement during serpentine belt or accessory drive service
- Made in Canada
Part Information:
Brand: Genuine GM
GM Part Number: 12673657
UPC: 808709528968
Fitment Applications:
2017–2026 Chevrolet Silverado 2500HD / 3500HD – L5P Duramax
2017–2026 GMC Sierra 2500HD / 3500HD – L5P Duramax
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